Sutton: Every guy I’ve ever worked with... Cops. You guys. You guys mess around. You get around. You said it about yourself.
Valens: Yeah, I’ve made mistakes.
Sutton: And whatever you did, no one gives you the up and down in the office, like you don’t deserve to be here.

Scotty Valens is Lilly's new partner and he's been pretty obnoxious during his first case:
first he ignores Lilly, then seems to downlook cold cases (Cold cases, I don't know... I like being out on the street.) and her previous partner (Gotta weed out the weak ones.), brags about his previous work at West and his car knowledge (You know a lot about cars ? - everything), shows off a lot of girls (so called"informant"), giving obvious tips to old homicide cops, screws up his interviews redaction, and finally is way too aggressive when interviewing the witnesses.

Scotty Valens is doing much better this time around : he is motivated (So we'll fine'em. Knock on doors. Ask neighborhood people. Someone'll remember our guy.) & funny (Do you know how to deliver a baby? - I can learn anything), at ease with witness (Did you kill him ? I mean, that would solve our case ;-) and he makes Lilly laugh several times (blind policeman story and Vera should be finding true love right about now). He makes her cringe once, though : he's only misstep is with Tinkerbell (I'm just wondering, if you're getting beaten up 'cause you dress like a woman, and you don't wanna get beat up, why not stop dressing like a woman?).

Scotty Valens is playing lottery every day (- You waste your money on the daily numbers? - Every morning. - Five bucks down the drain. - I don't got dependents. I can afford it.).
He is really excited by the idea of a serial killer cold case (A serial job don't get you hopped up just a little, boss?).
He understands perfectly the hitchhiker victim (I could win ten grand over there, I still ain't paying a cabbie 300 bucks to drive me home.).
He forced an innocent into a confession (threatening his kid) and is pissed when Stillman and Lilly wants to continue the investigation (Don't take a tone / I was just about to say that to you.) but eventually goes to apologize to the Russian at the end.

Scotty Valens about Elisa : she was doing so good, and then I don't know. I don't know what's happening.
According to Lilly, Elisa has been out of the hospital for one or two months.
Elisa has disappeared and just left a message on a mirror : "The Giants Came Back".
Stillman Scotty, is she okay?
Scotty : Uh, she's... gone.
Stillman What?
Scotty : She's not anywhere. Not any of the places she goes to when she gets... you know, like this. Library, the park, her sister's. All day, I'm driving. I can't find her.
Stillman Scotty, call it in, get some help.
Scotty : I can't call it in. They'll make her go back, and I promised her she'd, she'd never have to go back. I promised. I... I can't do that to her.
Stillman All right. It's going to be all right.
Scotty : Playing stick ball on my block. That's the first time I seen her. 14 years old. Oh, man... just kicking it on a hot summer night. That's the only place Elisa ever felt... normal, you know? I got to find her.
Scotty finds her at that place. She says that the meds are not working. She decides to go live with her sister.

Stillman : You talking to Elisa at all?
Scotty : She's back in the hospital.
Stillman : Oh, I didn't know, Scotty.
Scotty : It's a circle game. She's sick and better, and for a while you're hoping and then it starts again.
Stillman : Yeah.
Scotty : I just can't go round and round with her any more.

Scotty : When'd you first hear?
Lilly : About AIDS? I guess high school.
Scotty : I got the talk from a nun at Saint Francis. That's something you don't forget. (...) When Brother Donely died of it, it really hit home.

Stillman tells Scotty that they found Elisa in the Schuykill. Apparently she jumped from the bridge.
Scotty :No, she's scared of heights and she was getting better.
Det Anna Mayes gives Scotty the suicide note Elisa left for Scotty on her bed.

Scotty doesn't return Lilly's call but wants to work the case anyhow. He is suspended after beating the cult leader Maurice Warfield:

Maurice Warfield : Suicide's for cowards. Matthew was brave.
Scotty :Talk more about that.
Maurice Warfield : What? Suicide? Well. It's a screw you to the world. I never really loved any of you.
Scotty :Is that right? (...) What else does it proof?
Maurice Warfield : Defective thinking. Narcissism. And that the so-called loved ones have failed.

Will Jeffries pays a visit to Scotty but he doesn't seem to want to talk to him.
Listen, Scotty, I, uh- just wanted to say when my wife died... Well, I've been where you've been.(...) So, if you ever want to talk...

Scotty Valens goes to see Stillman:
Scotty :Well, I was hoping the uh-, suspension could be lifted...early.
Stillman : I didn't suspend you Scotty. I encouraged you to take time off.
Scotty :I'd like you to encourage me to come back.
But Stillman doesn't think he's ready yet and tells him to come back to work in a week.

Scotty and Nick Vera have a drink at Christina's bar:
Scotty :You're telling me how happy I'm back. Not asking how I'm doing. Thanks for that.
Vera : When the hard stuff happens, I say walk it off anyway you can. Whatever.
Scotty :You're the goods, Nicky.
Vera : But what you can't do? Is Rush's sister. You know what I mean?
Scotty :Oh, what do you think? What are you talking about?
Vera : Hey, Scotty. Serious. Anyone but that, right?

Scotty lies to Lilly about Christina:
Lilly : I hear you went to Christina's bar.
Scotty : Yeah? From who?
Lilly : From her.
Scotty : Me and Nicky went for a couple of beers. Not like we knew she was working there. (...) I ain't interested in your sister, Lil.
Lilly : Good. 'Cause she's a train wreck.
Scotty : Okay.
Lilly : And she didn't hit on you?
Scotty : No.

After Nick Vera strongly recommends him to break it off with Christina, Scotty goes to her :
Scotty : Chris. That night, it was a mistake.
Christina : It was?
Scotty : Cuz.. you know.
Christina : No, I don't know.
Scotty : Your sister... It's ill-advised.
Christina : Scotty, I know what this is. You're thinking about Elisa.
Scotty : I can't be anything with anyone right now. Sorry.
Christina : Well. For the record, I'm not.
Scotty : Look, I don't plan on telling Lil.
Christina : Me neither.
But they end up kissing and Christina is in Scotty's bed in the closing montage.

In 1998, Scotty worked undercover for a drug operation conducted by Manny Fernandez. He compromised it by becoming too close to Ana Castilla, a drug mule. During the investigation of Ana's cold case, he also compromised it by omitting to tell that his cover was blown and that he gave her in phone number.

Scotty Valens is contacted by his sister in law Ally who is concerned about her husband Mike. He has been depressed since Scotty's last visit. Scotty tries to talk to him and remembers when they wer kids, the day Mike came back upset from the training.

Scotty Valens confesses to Mike that he saw what happened with Fitzpatrick when they were kids. Mike finally accepts to testify against him after learning the sole witness committed suicide, thus making the pedophile walk free.

Kat : everyone's talking about you and that ADA.
Scotty : What's to talk about?
Kat : How much you guys "hate" each other.

Scotty about Euthanasia :
Scotty : You know, my granddad had als. Was a boxer, couldn't hold up a spoon in the end.
Lilly : Oh,yeah?
Scotty : Yeah. Suffered for weeks before he died. Still don't know the point of that.
Lilly : Hmm. There's always hope, right?
Scotty : Well,you know you can put down a dog if it's in pain?
Lilly : Or a cat. Yeah.
Scotty : Why not us?

My dad, he came here from Cuba when he was 15.My family's from Cuba. Guy named Castro takes over, 1959. Throws anyone who objects in jail or worse. My family's one of the lucky ones. But no matter how long they've been in this country, it still ain't... home. You spend New Year's Eve with any Cuban, you hear them give the toast: "El aÃ±o que viene en Cuba." "Next year in Cuba." But 1959? You do the math. Been waiting a long time.

Scotty has never been to Cuba. He keeps a picture of his grand-father and his brother on his fridge:
- This is my grandfather and his older brother. The revolution split 'em up. One to Philly, the other to Castro's jails. Decades go by. My grandfather gets word from Cuba his brother's dead. A month later, my "abulo" is gone.
- From what ?
- Heart attack. My father, working stiff said, "His heart didn't stop. It broke." What happens in Cuba stays with us.
Scotty has also a bottle of Champagne in his fridge, ready to celebrate Casto's end of dictatorship.

Scotty is visited by his father Ramiro at the precinct because he is worried about his wife Rosa who has been acting weird lately. He invites her to breakfast in order to get her to talk but learns nothing new. He follows her and sees her crying in her car.

Back in 2002 when Scotty was still in Narcotics, he met Alex Caceres whose mother was supposed to testify in a case of his, until she was murdered. In 2004, Scotty arrived late at Alex's hearing, making him feel responsible for his sentencing to 18 months at Havenhurst Academy, where he was found dead later.

Scotty finally manages to interview Emil Parker who saw his mother on the ground of the parking lot on the evening of August 23rd 2009. He watches a surveillance tape from a jewelery store near by and discovers that his mother seems to have been assaulted.

Scotty Valens conctacts Detective Pierson regarding the serial agressions, without mentioning that it concerns his mother. He later tells her that he knows what happened to her that night on the parking lot and wants her to try and identify her attacker, but she cannot help him.

Scotty lies to provide an alibi to Lilly for the night Moe Kitchener was murdered. He cryptically asks her to have his back too when he will need it.
The psychic Isabel de Luca tells him his mother will be fine but is "not so sure" about him...

Scotty learns from Belen Hernandez where to find the serial rapist. He breaks into his appartment and discovers the IDs of all his victims. Surprised by the man, they have a big fight and a trip down the stairs.

Scotty visits Hector Cruz in prison. The guy owes him and Scotty wants him to "take care" of a new fish. Then, Scotty purposely visits Jimmy Mota, his mother's attacker among the other inmates, tagging him as a snitch and sealing his death warrant... Mota is later found dead in the shower.

Scotty learns from Detective Pierson that Jimmy Mota, the man who raped her mother, has been found dead.
Scotty had lied to Lil about being contacted by her sister (7x21 Almost Paradise) and after recounting their meeting, he tells Lil about Christina's drug addiction.